Steam-trap.



No. '770,210- PATENTED SEPT. 18, 1904* L. F. ZILLES.

STEAM TRAP.

APPLICATION FILED PEB. s, 1904.

IINiTED VSTATES Patented September 13, 1904.

PATENT OEEICE.

LESLIE F. ZILLES, OF SOHNEOTADY, NEW YORK, ASSIGNOR OF ONE- HALF rIO JOHN O. GORTON AND THOMAS B. BURNITE, OF SOHEN- EOTADY, NEW YORK.

STEAM-TRAP.

SPECIFICATION forming part of Letters` Patent No. 770,210, dated September 13, `1904.

Application iiled February 8, 1904:. Serial N0. 191,862. (No model.)

Be it known that I, LESLIE F. ZILLES, a citizen of the United States, residing at Schenectady, in the county of Schenectady and State of New York, have invented certain new and useful Improvements in Steam-Traps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, forming part of this specification.

My invention relates to steam-traps, and has for its objects the construction of a steamtrap in such a manner that the action of the oat operates to open and close a steam-controlling-valve mechanism which operates to supply steam to a piston connected with and operating the water-discharge valve of the trap, so as to positively actuate the waterdischarge Valve both in thev opening and closing thereof. These and other features of my invention are hereinafter fully set forth and described,and illustrated in the accompanying drawings, in which- Figure 1 is a top or plan View of my improved steam-trap. Fig. 2 is a vertical section thereof principally on the line w .fr in Fig. I. Fig. 3 is an enlarged sectional view of the steam-controlling-valve mechanism.

In the drawings illustrating-my invention, A is a hollow shell provided with a steam-inlet opening a, a water-discharge opening a', and an opening a2, provided with a cock A for draining the shell A. In one side of this chamber I provide a cylindrical chamber B, in which a hollow iioat O moves freely up and down, this chamber B communicating both at the top and bottom thereof with the remainder of the trap, and under the bottom of this chamber B, I provide a stop to limit the downward movement of the float O.

The top of the shellA, I close by means of a suitable cover D, preferably secured to the shell A by means of bolts CZ. In the Waterdischarge opening co I secure a water-dis charge valve E, which consists of a valveseat e and a valve-stem e', operating thereon, and in the upper part of the valve E there is a chamber F, in which a piston connected with the valve-stem e operates, and in the cap F2, closing the top of the chamber F, I make a recess f, adapted to receive a projection f on the piston F and which as the piston F is raised enters the said recess f and compresses the steam or air therein, which operates as a cushion to decrease the impact of the piston F as it is moved in the chamber F. At the top and bottom of the chamber F I connect small pipes G and Gr, which lead to a steam-controlling-valve mechanism H, secured in the cover D of the shell A directly over the center ofthe chamber B. To the top of the iioat O, I secure a valve-stem I, having' a valve I on its upper end, the upper part of which is hollow and provided with ports and so located that when the ioat O is down, as shown in Fig. 2, steam enters from a small steam-supply pipe J through the port in the valve I and passes up through the chamber in the valve and out through the port z" thereinfand thence through the pipe G to the valve-chamber F above the piston F therein, which operates-to hold the stem e firmly upon the valve-seat e of the water-dis charge Valve E, and when in this position the pipe G, leading from the lower portion of the chamber F, is open to exhaust. When, however, the valve I is raised by the ioat O a short distance, the ports z' and c" are closed, and a slight further movement of the valve upward brings the depression 2 on the side of the valve I into position to form a connection with the discharge-port t, which allows the steam to escape fromthe upper part of the "chamber F y through the pipe G, and the further upward movement of the float O and valve I brings the annular groove 3 thereon into line with the pipes J and G, so that steam passes therethrough to the lower part of the valve-chamloer F and operates on the piston F to raise the valve-stem e off of the seat e, which allows the water to escape therethrough, the valve being thus held open until the float O moves the valve I downward far enough to discharge the steam from the lower part of the chamber F through the pipe G and escapeports 2 7L and again turns the steam through the pipe G to the upper part of the Valve-chamber F, as before. This operation of the mechanism being automatic, yoperates as described to discharge the water from the trap-shell A as often as it accumulates therein.

Having thus fully described my invention, so as to enable others to construct and utilize vthe same, what I claim as new, and desire to secure by Letters Patent of the United States, 1s-

1. The combination in asteam-trap of a shell having a steam-inlet and 'a water-discharge opening, valve mechanism in the water-discharge opening, a vcylinder and double-acting piston mechanism connected with said valve mechanism, a steam-controlling Valve adapted t'o supply steam alternately to either side of the piston controlling the water-discharge valve, an integral stem depending from said steam-controlling valve, and a iioat connected to said stem and operating said valve, substantially as set forth.

2. The'co'mbination in a steam-trap, of a shell having a steam -inlet, and a water-discharge opening, a steam-actuated valve in said waterdischarge opening,a hollow piston-valve mechanism for-controlling and supplying steam to and operating the water-discharge valve, a lioat operating in a supplementary chamber within the trap-shell, and a valve-stem connecting said ii'oat with the hollow piston-valve mechanism, substantially as and for the purpose set forth.

3. The'combination in a steam-trap,of a shell having a supplementary float -'chamber, a

steam-inlet and a water-discharge opening therein, a valve in the water-discharge opening, a cylindei` and piston connected with said valve, pipes leading from said cylinder above and below the piston therein, a hollow pistonvalve mechanism connected with said pipes for controlling and supplying steam to said cylinder, a valve-stem connected directly with and operating said piston-valve, and a ioat in said float-chamber connected with and operating said valve-rod ,substantially as set forth.

4. The combination in a steam-trap, of a shell having a supplementary float-chamber therein, and a steam-inlet, a water-discharge opening and a drip-cock opening therein, a valve in the water-discharge opening, a cylinder in said valvea piston therein connected with and operating said valve, a steam-controlling-valve mechanism, a hollow valve therein, a pipe adapted to communicate therewith and connecting the valve with the cylinder on the water-discharge valve above piston therein, an annular groove around the vvalve in the steam -controllingvalve mechanism adapted to communicate with a pipe leading to said cylinder below the piston therein, whereby the raising and lowering ofthe float operates the steam controlling valve to supply the steam to the cylinder on the water-discharge valve, and actuates the piston therein to open and close said valve, substantially as and for the purpose set forth.

In testimony whereof I ailX my signature in presence of two witnesses.

LESLIE F. ZILLES. Witnesses:

FRANK H. DETTBARN, GEORGE H. SMITH. 

